A Missouri state House committee released a report on Wednesday detailing an extramarital affair Gov. Eric Greitens (R) had with his hairdresser, who testified under oath that he groped her and was violent during sexual encounters, slapping and calling her names.

The panel, which includes five Republicans and two Democrats, said it finds the woman, whose name was not released, to be an "overall credible witness." The woman has accused Greitens of taking a photo of her without consent while...